<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="vue.js"></script>
</head>
<body>
    <div id="app">
        <my-parent></my-parent>
    </div>
    <template id="parent">
        <div>
            <h3>手机信息搜索</h3>
            手机品牌:<input type="text" v-model="brand">
            <my-child v-bind:name="brand"></my-child>
        </div>
    </template>
    <template id="child">
        <ul>
            <li>手机品牌:{{show.brand}}</li>
            <li>手机型号:{{show.type}}</li>
            <li>市场价格:{{show.price}}</li>
        </ul>
    </template>
    <script>
        Vue.component('my-parent',{
            template: '#parent',
            data (){
                return {
                    brand:''
                }
            }
        })
        Vue.component('my-child',{
            template: '#child',
            data (){
                return {
                    content:[
                        {brand:'华为',type:'Mate20',price:3699},
                        {brand:'苹果',type:'iPhone7',price:2949},
                        {brand:'三星',type:'Galaxy S8+',price:3299},
                        {brand:'vivo',type:'Z5x',price:1698},
                        {brand:'一加',type:'OnePlus',price:2999},
                        {brand:'360',type:'N7 Pro',price:1099},
                        {brand:'oppo',type:'Reno',price:2599},
                    ],
                    show:{brand:'',type:'',price:''}
                }
            },
            props:['name'],
            watch: {
                name (){
                    if(this.$props.name) {
                        var found = false
                        this.content.forEach((value, index) =>{
                            if (value.brand === this.$props.name) {
                                found = value
                            }
                        })
                        this.show = found ? found : {brand:'',type:'', price:''}
                    }else{
                        return
                    }
                    
                }
            }
        })
        var vm  = new Vue({
            el: '#app',
            data: {}
        })
    </script>
</body>
</html>